Circular Motion Practice Test Exam Questions and Answers

Circular Motion Practice Test Exam
Questions and Answers
For an object moving with uniform circular motion, the direction of the
acceleration is - -Toward the center of the circular path

- For an object moving with uniform circular motion, the direction of the
instantaneous velocity is - -tangent to the circular path

- For an object moving with uniform circular motion, the direction of the net
force is - -toward the center of the circular path

- I tie a rock to a string, and use the string to spin the rock in a vertical circle
at a constant speed. The tension in the string is - -is greatest when the rock
is at the bottom of its trajectory

- On a flat curve, the force(s) that provide(s) the centripetal force for a
turning car is (are) - -friction

- Which one of the following best describes the property of speed for a
planet orbiting the Sun? - -greatest when closest

- Can the centripetal force change the speed of an object? - -No

- Can the centripetal force accelerate an object? - -Yes

- Can you go around a curve with zero acceleration? - -No

- Can you go around a curve with constant velocity? - -No

- If an object is in equilibrium, what is the value of the net force on the
object? - -0 Newtons

- If an object is in equilibrium, what is the value of the net torque on the
object? - -0 Newtons/meter

- Can an object moving with uniform circular motion be in equilibrium? - -No

- If the Earth were twice as massive but kept the same radius, what would
happen to the value of G? - -Nothing

- If the Earth were twice as massive but kept the same radius, what would
happen to the value of g? - -doubles